23-Bit Life Objects

Still-lifes | Pseudo-still-lifes | P2 oscillators | P2 pseudo-oscillator | P3 oscillator | P4 oscillators | P5 oscillator | P5 pseudo-oscillator | P6 oscillator | P6 pseudo-oscillator | P8 oscillator | P8 pseudo-oscillator | P10 oscillator | P10 pseudo-oscillator | P15 oscillators | P15 pseudo-oscillator | P30 oscillators | P30 pseudo-oscillator | Spaceships



The 1646147 23-bit still-lifes

Unfortunately, due to space limitations, these cannot be shown.

Syntheses for 23 of these are shown.

23-bit still-lifes

23. 3212 [6] 23. 37372 [13] 23. 71444 [13] 23. 145713 [9] 23. 151613 [8] 23. 151762 [14] 23. 154537 [34] 23. 239323 [15]
23. 254435 [67] 23. 461789; Century eater w/ cis house [8] 23. 496092 [14] 23. 571622 [5] 23. 643404 [14] 23. 643694 [5] 23. 838489 [11] 23. 932632 [13]
23. 933772 [13] 23. 968914 [10] 23. 1248415 [13] 23. 1371307 [14] 23. 1384807 [5] 23. 1463751 [13] 23. 1487132 [11]  

The Century eater is specifically designed to eat a century.


The 1184882 23-bit pseudo-still-lifes

Unfortunately, due to space limitations, these cannot be shown.

Syntheses for 11 these are shown.

23-bit pseudo-still-lifes

Down symmetric scorpion above eater [6] Pond on shil- lelagh tie bun [6] Pond below shil- lelagh tie bun [6] Up symmetric scorpion above eater [6] Glider eater [12] Hat on pair of book- ends [13]
Down cis shil- lelagh mouth on long cis integral [19] Up eater tail on long cis integral w/ fuse w/ tail [27] Down claw w/ tail mouth on long cis integral [17] Up claw w/ tail tail on long cis integral [15] Down claw w/ tail chin on long cis integral [17]  

The glider eater works very similarly to Eater-2. It is also composed of a block on a still-life, and can also eat LWSS, MWSS, and gliders with any spacing, from either side. What makes it truly unusual, however, is that the block is not always necessary. If a glider hits the still-life alone, it turns into a boat, and a second glider on the same path turns the boat into a block. Subsequent gliders are absorbed by the block. This means that when synthesizing this eater as part of a larger pattern, the block can be omitted, reducing the cost from 14 gliders to 12.


6 23-bit period 2 oscillators

23-bit period 2 oscillators

Piston [46] Spark coil from tub on D on house [12] Spark coil from pre- block on D w/ tub on house [21] Light bulb*; Snake on light bulb [30] Spark coil tie boat; Boat on spark coil [5] Block and down boat on armpit [11]

(* Q: How many gliders does it take to screw in a light bulb?
A: 11-30, depending on the socket.)


2 23-bit period 2 pseudo-oscillators

23-bit PP2

Tripole below paper clip [10] Beacon between gull w/ two very long hooks [137]


0 23-bit period 3 oscillator

23-bit P3

Belu- chenko's P3 w/ super- mango and integral [32]


The 239 23-bit period 4 oscillators

Unfortunately, due to time limitations, these cannot yet be shown. These consist of:

The ones based on mold on a still-life are too numerous to show, but all are are easy to synthesize using standard techniques. The others are shown.

23-bit period-4 oscillators

Up mold on griddle [21] Down mold on griddle [21] Eater and block eating integral w/ loaf and hook [15] Confused eaters w/ barge [21] Eater and block eating integral w/ loaf and tub [15]
Integral w/ hook and block eating loaf w/ tail [18] Integral w/ tub and block eating loaf w/ tail [18] Confused eaters w/ tub and integral [23] Confused eaters w/ integral w/ hook [26] Confused eaters w/ integral w/ tub [26]


The 210 23-bit period 5 oscillators

Unfortunately, due to time limitations, these cannot yet be shown. These consist of:

Synthesis for 1 of these is shown; all others are easy to synthesize using standard techniques except one expanded Elkies's P5, also shown below, and a few cases of Silver's P5.

23 bit P5

Elkies's P5 w/ claw w/ tub and pre-block [x] Pentoad 1h2; Pentoad between eater and bookend and block [19]


The 220 23-bit period 5 pseudo-oscillators

Unfortunately, due to time limitations, these cannot yet be shown. These consist of:

All of these are easy to synthesize using standard techniques.


The 71 23-bit period 6 oscillators

Unfortunately, due to time limitations, these cannot yet be shown. These consist of:

All of these except the two below have a pseudo-period of 6, a composite of 2 and 3.

Syntheses for 2 of these (1 still unknown) are shown; all the others are easy to synthesize using standard techniques.

23-bit P6

P6 w/ block and head [x] Nicolay Belu- chenko's P6 between two eaters [24]


The 74 23-bit period 6 pseudo-oscillators

Unfortunately, due to time limitations, these cannot yet be shown. These consist of:

All of these except still-life on unix have a pseudo-period of 6, a composite of 2 and 3.

All of these are easy to synthesize using standard techniques.


The 8 23-bit period 8 oscillators

23-bit P8

Down blocker on cap [9] Down blocker on down long bookend [11] Up blocker on down long bookend [11] Up blocker on cap [11] Down blocker on up long bookend [11] Up Coe's P8 on table [13] Up blocker on up long bookend [13] Down Coe's P8 on table [13]


The 44 23-bit period 8 pseudo-oscillators

Unfortunately, due to time limitations, these cannot yet be shown. These consist of:

All of these are easy to synthesize using standard techniques.


The 5 23-bit period 10 oscillators

23-bit P10 oscillators

Silver's P5 below up beacon on table [25] Silver's P5 on down beacon on table [28] Silver's P5 on up beacon on table [25] Silver's P5 below down beacon on table [35] Pseudo- barber- pole tie bipole [50]

These all have a pseudo-period of 10, a composite of 2 and 5.


The 24 23-bit period 10 pseudo-oscillators

23-bit period-10 pseudo-oscillators

Up beacon on Silver's P5 on snake [26] Up beacon on Silver's P5 on carrier [21] Silver's P5 on snake on down beacon [25] Silver's P5 on carrier on down beacon [20] Silver's P5 on carrier on up beacon [20] Silver's P5 on snake on up beacon [25]
Silver's P5 above carrier on up beacon [28] Silver's P5 above carrier on down beacon [23] Down beacon on Silver's P5 on snake [25] Down beacon on Silver's P5 on carrier [20] Silver's P5 below carrier on down beacon [22] Silver's P5 below carrier on up beacon [24]
Up beacon above Silver's P5 on carrier [22] Up beacon above Silver's P5 on snake [26] Up beacon below Silver's P5 on snake [27] Up beacon below Silver's P5 on carrier [21] Down beacon below Silver's P5 on snake [25] Down beacon below Silver's P5 on carrier [20]
Down beacon above Silver's P5 on snake [25] Down beacon above Silver's P5 on carrier [20] Up bipole below pseudo-barber-pole [35] Up bipole on pseudo-barber-pole [35] Down bipole on pseudo-barber-pole [35] Down bipole below pseudo-barber-pole [35]

All of these have a pseudo-period of 10, a composite of 2 and 5.


The 8 23-bit period 15 oscillators

23-bit period 15 oscillators

Eater w/ cape eating penta- decathlon [9] Integral w/ tail eating penta- decathlon [8] Integral w/ long hook eating penta- decathlon [11] Carrier siamese eater eating penta- decathlon [10]
Snake siamese eater eating penta- decathlon [10] Integral w/ down boat eating penta- decathlon [8] Gull eating penta- decathlon [8] Integral w/ up boat eating penta- decathlon [8]


The 151 23-bit period 15 pseudo-oscillators

Unfortunately, due to time limitations, these cannot yet be shown. These consist of:

All of these are easy to synthesize using standard techniques.


The 2 23-bit period 30 oscillators

23-bit period 30 oscillators

Trans buckaroo; Queen bee between block and down eater [6] Cis buckaroo; Queen bee between block and up eater [6]

In addition to being able to being able to eat gliders in all the same ways a queen bee can, plus several others, the Buckaroo can also naturally reflect gliders 90 degrees, making it useful in constructing glider loops of period 30n.


The 7 23-bit period 30 pseudo-oscillator

23b PP30

Up boat on trans beacon on penta- decathlon [7] Down boat on trans beacon on penta- decathlon [9] Down boat on penta- decathlon on beacon [8] Up boat on penta- decathlon on beacon [8]
Up boat on cis beacon on penta- decathlon [7] Down boat on cis beacon on penta- decathlon [10] Pentapole on penta- decathlon [13]  

All of these have a pseudo-period of 30, a composite of 2 and 15.


The 2 23-bit spaceships

23-bit spaceships

LWSS on MWSS #2 [6] LWSS on MWSS #3 [7]

All of these have a period of 4 and an orthogonal velocity of c/2. They move two cells up every 4 generations.



Other sizes: 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26 and larger, not quite stable objects.

See also: Life objects sorted by: counts, frequency of occurrence, cost in gliders, name, size in bits, or type.

Home page | Life page

Copyright © 1997, 1998, 1999, 2013, 2014 by Mark. D. Niemiec. All rights reserved.
This page was last updated on 2015-02-19.